A must have
The other day I ripped a huge rock of a climb I was on and fell leading with this rock in my hands. It crashed into my shin, gouged me deeply and then went bouncing towards my belayer. As the gri gri caught me he was able to go hands free and get out of the way of the falling rock. Without this added technology I would have been let go of and crashed into the ledge below me with this 30lb rock smashing into my shin. It would have been a much different story. This is a must have piece of gear. Period.